The 7S36 is substantially identical to their ages-old non-hacking, non-hand-windable 7S26 except for the addition of 2 cap jewels and their associated bridgelet. This takes the total jewel count to 23 vs the 7S26's 21. According to some, the 2 extra jewels don't do anything, but theoretically, non-functioning jewels cannot be included in the total count. One opinion I have seen is that the 2 extra jewels were introduced to improve shock-resistance. This is how they get around the "functioning" rule.